Product Identification

Product Name

11b-[p-(Dimethylamino)phenyl]-17b-hydroxy-17-(1-propynyl)estra-4,9-dien-3-one

Synonyms

11b-(4-Dimethyl amino) phenyl-17b-hydroxy-17-(1-propynyl) estra-4,9-dien-3-one
17-beta-Hydroxy-11-beta-(4-dimethylaminophenyl-1)-17-alpha-(prop-1-ynyl)oestra-4,9-dien-3-one
Estra-4,9-dien-3-one, 11-(4-(dimethylamino)phenyl)-17-hydroxy-17-(1-propynyl)-, (11-beta, 17-beta)
RU-38486
RU-486
RU-486-6

CAS

84371-65-3

Formula

C29H35NO2

Molecular Weight

429.6

RTECS

KG2955000

RTECS Class

Reproductive Effector; Human Data; Hormone

Merck

12,6273

Beilstein/Gmelin

5779404

Beilstein Reference

6-14

Physical and Chemical Properties

Appearance

Light yellow fine powder

Solubility in water

Insoluble

Melting Point

192 - 196

Boiling Point

629

Vapor Pressure

1E-16 (25 C)

Density

1.189 g/cm3

pKa/pKb

9.81 (pKb)

Heat Of Vaporization

97.8 kJ/mol

Usage

Progesterone receptor antagonist; stimulates prolactin secretion. Pgp inhibitor.

First Aid Measures

Ingestion

If swallowed, wash out mouth with water provided person is conscious. Call a physician immediately.

Inhalation

If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.

Skin

In case of skin contact, flush with copious amounts of water for at least 15 minutes. Remove contaminated clothing and shoes. Call a physician.

Eyes

In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Handling and Storage

Storage

Keep tightly closed. Store at 2-8 C

Hazards Identification

Inhalation

May be harmful if inhaled. Material may be irritating to mucous membranes and upper respiratory tract.

Skin

May cause skin irritation. May be harmful if absorbed through the skin.

Eyes

May cause eye irritation.

Ingestion

May be harmful if swallowed.

Hazards

Emits toxic fumes under fire conditions.

EC Risk Phrase

60 61

EC Safety Phrase

53 22 36/37/39 45

Exposure Controls/Personal Protection

Personal Protection

Compatible chemical-resistant gloves. Chemical safety goggles.

Respirators

Government approved respirator.

Exposure Effects

Properties of this material have not yet been prepared. Any recommendations are of a general nature. Many chemicals cause irritation of the eyes, skin, and respiratory tract. In severe cases respiratory tract irritation can progress to ARDS/acute lung injury which may be delayed in onset for up to 24 to 72 hours in some cases Irritation or burns of the esophagus or gastrointestinal tract are also possible if caustic or irritant chemicals are ingested. ALWAYS contact your local poision control authority or medical professional for assistance.

Fire Fighting Measures

Flash Point

334

Fire Fighting

Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures

Small spills/leaks

Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Stability

Stable at normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, Carbon dioxide, Nitrogen oxides.